38574675493 has 2 divisors, whose sum is σ = 38574675494. Its totient is φ = 38574675492.

The previous prime is 38574675487. The next prime is 38574675497. The reversal of 38574675493 is 39457647583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37412070084 + 1162605409 = 193422^2 + 34097^2 .

It is an emirp because it is prime and its reverse (39457647583) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38574675493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38574675497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19287337746 + 19287337747.

It is an arithmetic number, because the mean of its divisors is an integer number (19287337747).

Almost surely, 2^38574675493 is an apocalyptic number.

It is an amenable number.

38574675493 is a deficient number, since it is larger than the sum of its proper divisors (1).

38574675493 is an equidigital number, since it uses as much as digits as its factorization.

38574675493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76204800, while the sum is 61.

The spelling of 38574675493 in words is "thirty-eight billion, five hundred seventy-four million, six hundred seventy-five thousand, four hundred ninety-three".